CoolerMaster SK622 Wireless/Bluetooth Mechanical RGB LED Backlight Gaming Keyboard (SK-622-GKTL1-US) - Keyboard MCU 32bit ARM Cortex M0, One-Board Memory 512 KB, Wireless connectivity: Bluetooth 4.0, Software Support Cooler Master MasterPlus+, Battery 4000mAh (2000mAh × 2), Connector Cable USB Type-C (Keyboard Side) USB 2.0 Type A (Computer Side), Keyboard Weight 446g (without cable), SK650 Series